Update changelog for 0.5.12-1 release

6 jobs for debian/0.5.12-1 in 7 minutes and 53 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Build
passed #245612
build

00:03:29

 
  Test
passed #245615
autopkgtest

00:03:48

passed #245616
blhc

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passed #245614
lintian

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passed #245617
piuparts

00:04:22

passed #245613
reprotest

00:02:49